Post 3: Core X-Y Musings...

By mhackney Tuesday, March 7, 2017
It's been 4 months since my last update Post 2: Improved Z Screw Bearing Blocks so time for an update. Things were going a little (ok, a lot) slow because I was getting caught up in analysis paralysis and over design-itis - primarily because of the hgh cost in both materials and time for the aluminum parts I planned to make. But recently I discovered Atomic Filament PETG-carbon fiber. This stuff is really nice, it prints beautifully, has great dimensional stability and print accuracy and is quite stiff. So, my new plan is to print all of the parts in this PETG-CF and get the printer operational. I can always come back and replace with machined parts if needed. This allwos me to do fast design and test print iterations (with PLA) and then a final print for the machine.

I also have a home for the printer so it is up off the floor–where it was really difficult to work on.
There it is squeezed between RazMaTazz (my Taz 4) and a Terk (a mini Kossel).

This makes working on it much easier. And the new plan is working. Here are some of the parts in PETG CF:

X and Y stepper mounts


Bearing mounts for ballscrews with angular contact bearings


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